Ductile damage, x65 pipe

[DavGray]

Can I get some help please in obtaining/calculating values to input for FRACTURE STRAIN, STRESS TRIAXILITY and STRAIN RATE within the Damage for Ductile Metals material behaviour please?

I have seen the Hooputra documentation, I am still confused.

Thanks in advance

 

[FEA way]

They can be obtained for particular material from experiments or from research papers.

Check the article "Identification of Ductile Damage Parameters" by Prantl et al. for reference.

 

[DavGray]

Hi FEA way, I have no experimental data. My dissertation is purely numerical.

I have stress strain curves that I have converted to True and applied to the plastic properties, is there a way to determine the values in question using those figures? i.e. yield stress and plastic strain?